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Top Runner Program - Water Heaters |
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| › Top Runner Program - Water Heaters |
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| Background |
Japan's Top Runner standards set mandatory energy efficiency targets for manufacturers of machinery and equipment. In addition, it defines the labelling and efficiency testing methods 21 product groups in the residential, commercial and transport sector.
The Top Runner standards are specified in the “Law concerning the Rational Use of Energy” (Energy Conservation Law) from 1979. After Japan signed the Kyoto Protocol to reduce total greenhouse gas emissions by 6% from 1990 level by 2012, tougher standards for machinery and equipment were necessary. Since 2003, new Top Runner standards have been established.
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| Impact on Heat Pumps |
Space heaters, gas and oil water heaters, including hot water supply sections and bath tub gas water heaters, are covered by the Top Runner scheme. Water storage types and water heaters for industrial use are, however, excluded from this definition.
The heat efficiency is measured as the energy consumption efficiency specified by the Japanese Standard S2109.
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| Targets |
The Top Runner programme is based on a maximum standard value system: in a product group the most energy-efficient product on the market (the “Top Runner”) sets the target value which has to be reached within a certain time frame by all other products.
To enable the achievement of the values by the target fiscal year the dynamic Top Runner scheme considers potential technological improvements.
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| Official documents |
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| More information: |
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